What is an important difference between genetic dissection and genomics? Genetic dissection can be use to determine the sequence of a gene. Genomics can be used to analyze many genes at once. Compared to genetic dissection, genomic approaches and sequencing are cost-prohibitive with today\'s Genomics can only be applied to humans and not to non-human model organisms. Solution Answer: Genomics can be used to analyze many genes at once Explanation: Genomics is an interdisciplinary field of science focusing on the structure, function, evolution, and mapping of genomes. A genome is a complete set of DNA within a single cell of an organism, and as such genomics is a branch of molecular biology.